Precautions that pregnant women must know and must observe During pregnancy, the health of pregnant women and the fetus must be highly valued. For this reason, pregnant women need to know some necessary precautions to ensure the health of themselves and their fetus. This article will introduce the precautions that pregnant women should follow in terms of diet, exercise, mental health and daily life. Dietary Precautions The diet of pregnant women has a vital impact on the growth and development of the fetus. Therefore, pregnant women need to pay attention to the following points: First, pregnant women should eat more foods rich in protein, calcium, iron and other nutrients. Protein is the basic substance that makes up the human body.